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    SINGLE EVENT UPSET PROTECTION
    1.
    发明公开
    SINGLE EVENT UPSET PROTECTION 审中-公开

    公开(公告)号：EP4459870A1

    公开(公告)日：2024-11-06

    申请号：EP24173004.3

    申请日：2024-04-29

    申请人： Goodrich Corporation

    发明人： GEORGIN, Marc J.

    IPC分类号： H03K19/003 ,  B64C25/42 ,  B60T8/17 ,  B60T8/88 ,  B60T17/22

    摘要： A single event upset (SEU) mitigation system is disclosed herein. The SEU system includes a trigger circuit configured to receive an input signal, a hold circuit operatively coupled to the trigger circuit and configured to receive a first signal from the trigger circuit, a reset circuit operatively coupled to the hold circuit and configured to output a reset signal in response to receiving one or more hold signals from the hold circuit, and a controller operatively coupled to the reset circuit, the controller configured to reset in response to the reset signal.

    DISTRIBUTED LANDING GEAR SYSTEM ARCHITECTURE FOR ELECTROMECHANICAL ACTUATION
    2.
    发明公开
    DISTRIBUTED LANDING GEAR SYSTEM ARCHITECTURE FOR ELECTROMECHANICAL ACTUATION 审中-公开

    公开(公告)号：EP4458668A2

    公开(公告)日：2024-11-06

    申请号：EP24201773.9

    申请日：2021-03-05

    申请人： Goodrich Corporation

    发明人： VIJAY, Ashish ,  CEPIC, Adnan ,  JOSYULA, Anil Prasad ,  VENKATESHA, Harish Gondihalli

    IPC分类号： B64C25/10

    摘要： A landing gear system, comprising: a nose gear door motor (132); a nose gear motor drive unit (130) in operable communication with the nose gear door motor; a nose gear retraction-extension motor (134) in operable communication with the nose gear motor drive unit; an alternating current direct current converter (200) electrically coupled to the nose gear motor drive unit; a controller (122) in operable communication with the nose gear motor drive unit; and a tangible, non-transitory memory configured to communicate with the controller, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the controller, cause the controller to perform operations comprising: receiving, by the controller, a pilot command; determining, by the controller, a nose landing gear power sequence for providing power to the nose gear door motor and the nose gear retraction-extension motor in response to receiving the pilot command; and outputting, by the controller, a first command to the nose gear motor drive unit, wherein the nose gear motor drive unit is configured to power either the nose gear door motor or the nose gear retraction-extension motor based on the first command from the controller.

    METHOD AND SYSTEM FOR MONITORING OPERATIONS OF LANDING GEARS OF AIRCRAFTS
    8.
    发明公开
    METHOD AND SYSTEM FOR MONITORING OPERATIONS OF LANDING GEARS OF AIRCRAFTS 审中-公开

    公开(公告)号：EP4410683A1

    公开(公告)日：2024-08-07

    申请号：EP23305125.9

    申请日：2023-01-31

    申请人： Airbus SAS

    发明人： COOKE, Cameron Graeme

    IPC分类号： B64D45/00 ,  B64C25/00 ,  B64F5/40

    CPC分类号： B64D45/0005 ,  G06N20/00 ,  B64C25/00 ,  B64F5/40

    摘要： A method for providing an operational state of a monitored landing gear of an aircraft comprises : obtaining (501) in real-time captured signals, such as images, of an actual position of the monitored landing gear; transforming (502) the captured signals in a descriptor vector using Principal Components Analysis; injecting (503) the descriptor vector in a machine learning-based model trained and configured to transform descriptor vectors into equivalent operational states of landing gears; and providing (504) the operational state of the monitored landing gear to avionics of the aircraft. Thus, a quantity of sensors used to monitor landing gears of aircrafts is reduced.

    AIRCRAFT LANDING GEAR ASSEMBLY
    10.
    发明公开
    AIRCRAFT LANDING GEAR ASSEMBLY 审中-实审

    公开(公告)号：EP4371876A3

    公开(公告)日：2024-07-24

    申请号：EP24168000.8

    申请日：2021-06-28

    申请人： Safran Landing Systems UK Limited

    发明人： BERTHOUD, Marcelo ,  GUIMARAES MAIA, Leandro ,  JUESAS PORTOLES, Jorge

    IPC分类号： B64C25/26 ,  B64C25/20 ,  B64C25/12

    CPC分类号： B64C25/12 ,  B64C25/26 ,  B64C25/20

    摘要： An aircraft landing gear assembly (50, 80) comprising: a first landing gear element (60) movably coupled relative to a second landing gear element (62) to pivot about a pivot axis (PA) between a first condition and a second condition; a cam surface (74) defined by the second landing gear element; and a leaf spring having a first end region and a second end region, the first end region of the leaf spring being coupled to the first landing gear element to move with the first landing gear element and the second end region of the leaf spring comprising a cam follower (72) arranged in moving contact with the cam surface such that the cam follower moves from a first region (R1) of the cam surface to a third region (R3) of the cam surface via a second region (R2) of the cam surface as the first landing gear element pivots about the pivot axis between the first condition and the second condition, wherein the cam surface is shaped such that a distance (RO) between the pivot axis and the cam surface increases between the first region and the second region to define a first gradient and the distance between the pivot axis and the cam surface varies between the second region and the third region of the cam surface to define a second gradient, the second gradient being less steep than the first gradient.